Feb., 1912. Mammals of Illinois and Wisconsin — Cory. 47 



GROUP 6. Order CHIROPTERA. Bats. 



Fore limbs modified and fingers greatly elongated, supporting a leathery mem- 

 brane which is attached to the hind limbs and body 

 and forms a wing. 



Body covered with soft fur; wings more or 

 less bare. Most of our Bats are comparatively 

 small and they are often observed flying about 

 in the evening. 



Family VESPERTILIONIDiE. Bats, p. 445. 



